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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.

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package com.sun.faces.el;

import javax.el.ELException;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.PropertyNotFoundException;
import javax.faces.el.PropertyResolver;

import java.lang.reflect.Array;
import java.util.List;

import com.sun.faces.util.MessageUtils;

/**
 * 

* Concrete implementation of PropertyResolver. *

*/ @SuppressWarnings("deprecation") public class PropertyResolverImpl extends PropertyResolver { private PropertyResolver delegate; // ------------------------------------------- Methods from PropertyResolver // Specified by javax.faces.el.PropertyResolver.getType(Object,int) @Override public Class getType(Object base, int index) throws EvaluationException, PropertyNotFoundException{ // validates base != null and index >= 0 assertInput(base, index); if (delegate != null) { return delegate.getType(base, index); } Class type = base.getClass(); try { if (type.isArray()) { Array.get(base, index); return type.getComponentType(); } else if (base instanceof List) { Object value = ((List) base).get(index); return (value != null) ? value.getClass() : null; } else { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_PROPERTY_TYPE_ERROR_ID, base)); } } catch (ArrayIndexOutOfBoundsException aioobe) { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_SIZE_OUT_OF_BOUNDS_ERROR_ID, base, index, Array.getLength(base))); } catch (IndexOutOfBoundsException ioobe) { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_SIZE_OUT_OF_BOUNDS_ERROR_ID, base, index, ((List)base).size())); } } // Specified by javax.faces.el.PropertyResolver.getType(Object,String) @Override public Class getType(Object base, Object property) { assertInput(base, property); if (delegate != null) { return delegate.getType(base, property); } try { FacesContext context = FacesContext.getCurrentInstance(); return context.getApplication().getELResolver().getType(context.getELContext(), base,property); } catch (javax.el.PropertyNotFoundException pnfe) { throw new PropertyNotFoundException(pnfe); } catch (ELException elex) { throw new EvaluationException(elex); } } // Specified by javax.faces.el.PropertyResolver.getValue(Object,int) @Override public Object getValue(Object base, int index) { // validates base and index if (base == null) { return null; } if (delegate != null) { return delegate.getValue(base, index); } if (base.getClass().isArray()) { try { return Array.get(base, index); } catch (ArrayIndexOutOfBoundsException aioobe) { return null; } } else if (base instanceof List) { try { return ((List) base).get(index); } catch (IndexOutOfBoundsException ioobe) { return null; } } else { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_PROPERTY_TYPE_ERROR_ID, base)); } } // Specified by javax.faces.el.PropertyResolver.getValue(Object,String) @Override public Object getValue(Object base, Object property) { if (delegate != null) { return delegate.getValue(base, property); } try { FacesContext context = FacesContext.getCurrentInstance(); return context.getApplication().getELResolver().getValue(context.getELContext(), base,property); } catch (javax.el.PropertyNotFoundException pnfe) { throw new PropertyNotFoundException(pnfe); } catch (ELException elex) { throw new EvaluationException(elex); } } // Specified by javax.faces.el.PropertyResolver.isReadOnly(Object,int) @Override public boolean isReadOnly(Object base, int index) { // validate input assertInput(base, index); if (delegate != null) { return delegate.isReadOnly(base, index); } if (base instanceof List || base.getClass().isArray()) { return false; } else { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_PROPERTY_TYPE_ERROR_ID, base)); } } // Specified by javax.faces.el.PropertyResolver.isReadOnly(Object,String) @Override public boolean isReadOnly(Object base, Object property) { if (delegate != null) { return delegate.isReadOnly(base, property); } try { FacesContext context = FacesContext.getCurrentInstance(); return context.getApplication().getELResolver().isReadOnly(context.getELContext(), base,property); } catch (ELException elex) { throw new EvaluationException(elex); } } // Specified by javax.faces.el.PropertyResolver.setValue(Object,int,Object) @Override public void setValue(Object base, int index, Object value) { // validate input assertInput(base, index); if (delegate != null) { delegate.setValue(base, index, value); return; } FacesContext context = FacesContext.getCurrentInstance(); Class type = base.getClass(); if (type.isArray()) { try { Array.set(base, index, (context.getApplication(). getExpressionFactory()).coerceToType(value, type .getComponentType())); } catch (ArrayIndexOutOfBoundsException aioobe) { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_SIZE_OUT_OF_BOUNDS_ERROR_ID, base, index, Array.getLength(base))); } } else if (base instanceof List) { try { // Inherently not type safe, but nothing can be done about it. //noinspection unchecked ((List) base).set(index, value); } catch (IndexOutOfBoundsException ioobe) { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_SIZE_OUT_OF_BOUNDS_ERROR_ID, base, index, ((List)base).size())); } } else { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_PROPERTY_TYPE_ERROR_ID, base)); } } // Specified by // javax.faces.el.PropertyResolver.setValue(Object,String,Object) @Override public void setValue(Object base, Object property, Object value) { if (delegate != null) { delegate.setValue(base, property, value); return; } try { FacesContext context = FacesContext.getCurrentInstance(); context.getApplication().getELResolver().setValue(context.getELContext(), base,property, value); } catch (javax.el.PropertyNotFoundException | javax.el.PropertyNotWritableException pnfe) { throw new PropertyNotFoundException(pnfe); } catch (ELException elex) { throw new EvaluationException(elex); } } // ---------------------------------------------------------- Public Methods public void setDelegate(PropertyResolver delegate) { this.delegate = delegate; } protected static void assertInput(Object base, Object property) throws PropertyNotFoundException { if (base == null) { String message = MessageUtils.getExceptionMessageString (MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "base"); throw new PropertyNotFoundException(message); } if (property == null) { String message = MessageUtils.getExceptionMessageString (MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "property"); throw new PropertyNotFoundException(message); } } protected static void assertInput(Object base, int index) throws PropertyNotFoundException { if (base == null) { String message = MessageUtils.getExceptionMessageString (MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "base"); throw new PropertyNotFoundException(message); } if (index < 0) { throw new PropertyNotFoundException(MessageUtils.getExceptionMessageString( MessageUtils.EL_OUT_OF_BOUNDS_ERROR_ID, base, index)); } } }




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